Name: KoalaHubs

Display Field: VerDate

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Koala ‘Hubs’ are areas of currently known significant koala occupancy that indicate clusters of resident populations. Simply put, Koala Hubs are local population data based on kernel density for resident koala populations (records over two generation periods with a two km neighbour search). A total of 567 Hubs were identified across NSW. Altogether, 101768 hectares or around 0.13% of NSW is mapped as Koala Hubs. The vector layer was converted from a Esri Grid (raster) layer. In more detail, the Hub analysis applied a nominal home range of 500m (20ha) to the analysis and a neighbourhood search of 2km to the density analysis. Clusters of 3 or more records within 500m were retained for analysis which were further filtered to exclude isolated (more than 2km) clusters below 300 hectares. The nominal home range (500m) was applied NSW-wide. It was a requirement for each koala hub to have recorded occurrence either in current generation or across at least 2 of the past 4 generations (6 year periods). No attempt has been made at this stage to account for regional differences in home range occupancy. This is not a map of habitat suitability, rather of koala occupancy. The dataset is limited by survey effort and where survey is limited or absent, identified Koala Hubs may be under-recognised. Hub mapping has been peer-reviewed but formal agency adoption has not been directed. Biodiversity Conservation Division, North East Branch is however providing SOS partners with the data to help support planning for threat mitigation to local koala populations. These are 2017 data and require updating. A tool is planned in being written to do this.

Copyright Text:

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON

Min Scale: 10000000

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Supports Datum Transformation: true

Extent:

XMin: 146.5200438720001
YMin: -36.87778443199994
XMax: 153.63963143400008
YMax: -28.239751818999935
Spatial Reference: 4283  (4283)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [184, 196, 219, 255]
Outline:
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Color: [110, 110, 110, 255]
Width: 0
Label:
Description:
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• ID ( type: esriFieldTypeInteger, alias: ID )
• GRIDCODE ( type: esriFieldTypeInteger, alias: GRIDCODE )
• Hub_Ha ( type: esriFieldTypeDouble, alias: Hub_Ha )
• VerDate ( type: esriFieldTypeString, alias: VerDate, length: 10 )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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